#!/bin/bash

# Apt and dpkg status check for Check_MK
# Installed by BLSE 2.x ansible

TMP_DPKG="$( COLUMNS=200 dpkg --list )"
TMP_AWK="$( awk '
    { if (NR>5) {
        if ($1 != "ii") bad_package[$2]=$1;
    }}
    END {
        print NR-5;
        bad_package_count=asort(bad_package,junk)
        if (bad_package_count) {
            for (package in bad_package)
                print package "[" bad_package[package] "]"
            exit 1
        }
    }
' <<<"$TMP_DPKG" )"

DEBIAN_VERSION="$( cat /etc/debian_version )"
TOTAL_PACKAGES=$( head --lines=1 <<<"${TMP_AWK}" )
UPGRADABLE_PACKAGES=( $( apt list --upgradable 2>/dev/null | grep -v '^Listing' | awk '{ gsub(/\]/,"",$NF); print $1 "[" $NF "<>" $2 "]" }' ) )
INCONSISTENT_PACKAGES=( $( tail --lines=+2 <<<"${TMP_AWK}" ) )
OLD_CONFIG_FILES=( $( ionice -c3 find /etc -type f -a \( -name '*.dpkg-*' -o -name '*.ucf-*' -o -name '*.update-*' \) 2>/dev/null ) )

echo "<<<dpkg>>>"
echo "debian_version ${DEBIAN_VERSION}"
echo "total_packages ${TOTAL_PACKAGES}"
echo "upgradable_packages ${#UPGRADABLE_PACKAGES[*]} ${UPGRADABLE_PACKAGES[*]}"
echo "inconsistent_packages ${#INCONSISTENT_PACKAGES[*]} ${INCONSISTENT_PACKAGES[*]}"
echo "obsolete_configuration_files ${#OLD_CONFIG_FILES[*]} ${OLD_CONFIG_FILES[*]}"